Patent US3140225A successfully refreshed from Google Patents.
US3140225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable drainage foil for paper machines
Assignee: Library and Archives Canada
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Filing: 1962-11-29
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Granted: 1964-07-07
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Expires: 1982-11-29
Abstract
No abstract record available.
Inventors
- 👤 Truxa Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:54
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/483; D21F1/486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN A DEVICE OF THE CHARACTER DESCRIBED HAVING A BODY HAVING A FOIL LEADING PORTION AND A FOIL TRAILING PORTION, AN ADJUSTING BAR CARRIED BY SAID BODY, PROJECTIONS AND CAM ELEMENTS ON SAID ADJUSTING BAR AND SAID FOIL TRAILING PORTION, SAID CAN ELEMENTS OPERATIVELY ENGAGING SAID PROJECTION WHEREBY SAID TRAILING PORTION MAY BE ANGULARLY ADJUSTED RELATIVE TO SAID LEADING PORTION, THE IMPROVEMENT COMPRISING, SAID FOIL LEADING PORTION AND SAID FOIL TRAILING PORTION BEING FORMED SEPARATE FROM EACH OTHER, AND A SEPARATE FLEXIBLE IMPERVIOUS MEMBER CONNECTING SAID SEPARATE FOIL LEADING TRAILING PORTIONS.
Claim 2
Dependent Claim
91 words
IN A DEVICE OF THE CHARACTER DESCRIBED HAVING A BODY HAVING A FOIL LEADING PORTION AND A FOIL TRAILING PORTION, AN ADJUSTING BAR CARRIED BY SAID BODY, PROJECTIONS AND CAM ELEMENTS ON SAID ADJUSTING BAR AND SAID FOIL TRAILING PORTION, SAID CAN ELEMENTS OPERATIVELY ENGAGING SAID PROJECTION WHEREBY SAID TRAILING PORTION MAY BE ANGULARLY ADJUSTED RELATIVE TO SAID LEADING PORTION, THE IMPROVEMENT COMPRISING, SAID FOIL LEADING PORTION AND SAID FOIL TRAILING PORTION BEING FORMED SEPARATE FROM EACH OTHER, AND A SEPARATE FLEXIBLE IMPERVIOUS MEMBER CONNECTING SAID SEPARATE FOIL LEADING TRAILING PORTIONS.
References Cited (Backward Citations)
US1189588A
Cited
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Cited
US2694345A
Cited
US3027940A
Cited
US2928465A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |